The hand at her back slides off, and that’s a little painful too. Byul is awake. They lie there in silence for a while, neither of them talking, but both knowing that the other is awake. Yong contemplates pretending to go back to sleep, but that’s the coward’s way out. Instead, she shifts to lie on her back and rolls her head to the side. Byul is already looking at her, expression blank. || or, Byul and Yong aren't soulmates, but they don't care.

The first words your soulmate says to you are written on your body and while Tzuyu has an absolutely unhelpful 'hey' written on her, Jihyo has something very "unique".